Fiona puts her hands into a sink of lukewarm water; Luke puts his hands into a sink of ice-cold water. Based on what is known about neural transmission, you could predict that the action potentials will
A)travel more quickly in Luke's system because the stimulus is more intense.
B)be weaker in Fiona's system because the stimulus is less intense.
C)be the same in both individuals due to the all-or-none principle.
D)travel a shorter distance in Luke's system because the stimulus is more intense.

Question

Fiona puts her hands into a sink of lukewarm water; Luke puts his hands into a sink of ice-cold water. Based on what is known about neural transmission, you could predict that the action potentials will ​
A)travel more quickly in Luke's system because the stimulus is more intense.
B)be weaker in Fiona's system because the stimulus is less intense.
C)be the same in both individuals due to the all-or-none principle.
D)travel a shorter distance in Luke's system because the stimulus is more intense.

Quizplus · Accepted Answer

The all-or-none principle states that once an action potential is triggered in a neuron, it travels down the axon without decreasing in strength, regardless of the stimulus intensity. Thus, the action potentials in both Fiona and Luke's systems would be the same.

Fiona Puts Her Hands into a Sink of Lukewarm Water;